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Light earthquake: M4.2 quake has struck near Road Town in British Virgin Islands

Earthquake location 19.153S, -64.798WA light earthquake with magnitude 4.2 (ml/mb) was reported 83 kilometers (52 miles) from Road Town in British Virgin Islands on Saturday. Id of earthquake: pt17204050. Event ids that are associated: pt17204050. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 23/07/17 / 2017-07-23 00:18:04 / July 23, 2017 @ 12:18 am. The temblor was picked up at 20:18:04 / 8:18 pm (local time epicenter). The epicenter was at a depth of 31.6 km (20 miles). Exact location of event, depth 31.6 km, -64.798° West, 19.153° North.

Closest city/cities/towns to epicentrum/hypocenter was Cruz Bay, Charlotte Amalie, Road Town (min 5000 pop). Earthquake epicenter was 82 km (51 miles) from Tortola (c. 23 900 pop), 91 km (57 miles) from Charlotte Amalie (c. 20 000 pop), 83 km (51 miles) from Road Town (c. 8 400 pop), 91 km (57 miles) from Cruz Bay (c. 2 700 pop). Close country/countries that might be effected, British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop).

There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days seven, in the past 30 days fourty-one and in the last 365 days four hundred and seventy-six earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 83 km NNW of Road Town, British Virgin Islands.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -64.798° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.153° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 31.6 km Depth of the event in kilometers.
Place 83km NNW of Road Town, British Virgin Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-23 00:18:04 Time when the event occurred. UTC/GMT
Updated 2017-07-23 00:21:05 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status REVIEWED Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 271 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pt The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pt, A comma-separated list of network contributors.
Number of Stations Used 16 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pt17204050 Id of event.
Event Code 17204050 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt17204050, A comma-separated list of event ids that are associated to an event.

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